Bathtub



FIG. 1 is a top perspective view of a bathtub showing my new design.

FIG. 2 is a left end elevational view thereof.

FIG. 3 is a side elevational view thereof, the opposite side being amirror image of the side shown.

FIG. 4 is a right end elevational view thereof.

FIG. 5 is a top plan view thereof.

The ornamental design for a bathtub, as shown and described.